FSTZX vs. FFNYX

Last updated Jun 24, 2026

FSTZX (Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund) and FFNYX (Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund) are both Inflation-Protected Bonds funds from Fidelity. Their correlation of 0.90 suggests significant overlap in exposure. FSTZX charges 0.00%/yr vs 0.05%/yr for FFNYX.

Performance

FSTZX vs. FFNYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund (FSTZX) and Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund (FFNYX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FSTZX

• 1D: -0.10%
• 1M: -0.20%
• YTD: 1.38%
• 6M: 1.49%
• 1Y: 3.52%
• 3Y*: 5.02%
• 5Y*: —
• 10Y*: —

FFNYX

• 1D: -0.10%
• 1M: -0.20%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

FSTZX vs. FFNYX - Yearly Performance Comparison

	2026 (YTD)
FSTZX Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund	0.36%
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	0.24%

Correlation

The correlation between FSTZX and FFNYX is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (All Time) Calculated using the full available price history since Mar 16, 2026	0.90

Return for Risk

FSTZX vs. FFNYX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FSTZX

FSTZX Risk / Return Rank: 80
FSTZX Sharpe Ratio Rank: 62
FSTZX Sortino Ratio Rank: 73
FSTZX Omega Ratio Rank: 78
FSTZX Calmar Ratio Rank: 94
FSTZX Martin Ratio Rank: 93

FFNYX

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

FSTZX vs. FFNYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund (FSTZX) and Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund (FFNYX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	FSTZX	FFNYX	Difference
Sharpe ratio: Return per unit of total volatility	2.14	—	—
Sortino ratio: Return per unit of downside risk	3.24	—	—
Omega ratio: Gain probability vs. loss probability	1.46	—	—
Calmar ratio: Return relative to maximum drawdown	5.19	—	—
Martin ratio: Return relative to average drawdown	17.92	—	—

Drawdowns

FSTZX vs. FFNYX - Drawdown Comparison

The maximum FSTZX drawdown since its inception was -5.30%, which is greater than FFNYX's maximum drawdown of -0.78%. Use the drawdown chart below to compare losses from any high point for FSTZX and FFNYX.

Drawdown Indicators

	FSTZX	FFNYX	Difference
Max Drawdown Largest peak-to-trough decline	-5.30%	-0.78%	-4.52%
Max Drawdown (1Y) Largest decline over 1 year	-0.70%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-1.03%	—	—
Current Drawdown Current decline from peak	-0.70%	-0.78%	+0.08%
Average Drawdown Average peak-to-trough decline	-1.08%	-0.21%	-0.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.20%	—	—

Volatility

Volatility by Period

	FSTZX	FFNYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.72%	—	—
Volatility (6M) Calculated over the trailing 6-month period	1.24%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	1.71%	2.00%	-0.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.79%	2.00%	+0.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.79%	2.00%	+0.79%

FSTZX vs. FFNYX - Expense Ratio Comparison

FSTZX has a 0.00% expense ratio, which is lower than FFNYX's 0.05% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

FSTZX vs. FFNYX - Dividend Comparison

FSTZX's dividend yield for the trailing twelve months is around 3.66%, more than FFNYX's 0.04% yield.

Position	TTM	2025	2024	2023	2022	2021
FFNYX Fidelity SAI 0-5 Year Inflation-Protected Bond Index Fund	0.04%	0.00%	0.00%	0.00%	0.00%	0.00%
FSTZX Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund	3.66%	4.02%	2.78%	2.54%	5.25%	0.82%

Frequently Asked Questions

Can I hold both FSTZX and FFNYX in my portfolio?

FSTZX and FFNYX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.